Eighteen days after Pope Francis last appeared on the balcony of St. Peter's Basilica on Easter Sunday, the world cheered as his successor -- the 267th pope -- emerged on the same balcony on Thursday.

Robert Prevost, who was promoted by Francis and has a knack for management and a zeal for missionary work, was a stronger candidate than many outside the Vatican knew.

Pope Francis' successor has been elected, and it's the first American pope. Here's what we know about Cardinal Robert Prevost.